/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * This file is part of retabel.
 *
 * Copyright (c) 2011 by individual contributors as indicated by the
 * @author tags. See the copyright.txt file in the distribution
 * for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.retabel.service.manager;

import org.retabel.persistence.dao.document.DocumentConfigurationDao;
import org.retabel.persistence.entity.document.DocumentConfiguration;
import org.retabel.persistence.entity.document.DocumentConfigurationTypeEnum;
import org.retabel.service.mapper.XmlConfigurationMappingException;
import org.retabel.service.mapper.XmlDocumentConfigurationMapper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.ejb.EJB;
import javax.ejb.Stateless;
import javax.ejb.TransactionAttribute;
import javax.ejb.TransactionAttributeType;

/**
 * Service implementation for managing document configurations
 * <p/>
 * <h3>Extra-Info</h3>
 * Created: 18:52 01.07.11
 *
 * @author Peter Herber
 * @version 1.0
 */
@Stateless
public class DocumentConfigurationManagerBean implements DocumentConfigurationManager {

    /** The Logger. */
    private static final Logger logger = LoggerFactory.getLogger(DocumentConfigurationManagerBean.class);

    /** Dao to access the document configurations. */
    @EJB
    private DocumentConfigurationDao documentConfigurationDao;

    @EJB
    private XmlDocumentConfigurationMapper xmlDocumentConfigurationMapper;

    @Override
    @TransactionAttribute(TransactionAttributeType.REQUIRED)
    public DocumentConfiguration[] findAllSorted(int from, int maxResults) {
        return documentConfigurationDao.findAllByTypeSorted(from, maxResults, DocumentConfigurationTypeEnum.PERMANENT);
    }

    @Override
    @TransactionAttribute(TransactionAttributeType.REQUIRED)
    public DocumentConfiguration findDocumentConfiguration(String name, String version) {
        return documentConfigurationDao.findByNameVersionAndType(name, version, DocumentConfigurationTypeEnum.PERMANENT);
    }

    @Override
    @TransactionAttribute(TransactionAttributeType.REQUIRED)
    public int count() {
        return documentConfigurationDao.count(DocumentConfigurationTypeEnum.PERMANENT);
    }

    @Override
    @TransactionAttribute(TransactionAttributeType.REQUIRED)
    public void store(byte[] documentConfigurationData) throws XmlConfigurationMappingException {
        DocumentConfiguration documentConfiguration = xmlDocumentConfigurationMapper.unmarshal(documentConfigurationData);

        // store as permanent section configuration type
        documentConfiguration.setConfigurationType(DocumentConfigurationTypeEnum.PERMANENT);

        documentConfigurationDao.merge(documentConfiguration);
    }

    @Override
    @TransactionAttribute(TransactionAttributeType.REQUIRED)
    public void remove(String name, String version) {
        DocumentConfiguration documentConfiguration = documentConfigurationDao.findByNameVersionAndType(name, version,
                                                                                                        DocumentConfigurationTypeEnum.PERMANENT);
        if (documentConfiguration == null) {
            return;
        }

        documentConfigurationDao.remove(documentConfiguration);
    }
}
